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Influence of fiber framework design on fracture strength of posterior glass fiber-reinforced-composite resin-bonded fixed partial dentures / 中华口腔医学杂志
Chinese Journal of Stomatology ; (12): 52-56, 2007.
Article Dans Chinois | WPRIM | ID: wpr-292987
ABSTRACT
<p><b>OBJECTIVE</b>To analyze influence of fiber framework design on fracture strength of posterior glass fiber-reinforced-composite resin-bonded fixed partial dentures (GFRC-RBFPD).</p><p><b>METHODS</b>Based on established three-dimensional finite element models of GFRC-RBFPD for restoring the second mandibular premolar or the first mandibular molar, traditional fiber framework design and modified fiber framework design were analyzed. Two types of load, including cusp-fossa load and buccal-lingual cusp load, were selected. Load values were 400 N on premolar and 600 N on molar respectively. The fracture strength of GFRC-RBFPD was calculated.</p><p><b>RESULTS</b>Under cusp-fossa load, the fracture strength was 1340 N for both types of fiber frameworks of premolar GFRC-RBFPD, and 864 N for traditional framework and 875 N for modified framework of molar GFRC-RBFPD. Under buccal-lingual load, the fracture strength of premolar GFRC-RBFPD was 792 N for traditional framework and 1019 N for modified framework; that of molar GFRC-RBFPD was 645 N for traditional framework and 652 N for modified framework.</p><p><b>CONCLUSIONS</b>The modified fiber framework obviously improved the strength of premolar GFRC-RBFPD and only slightly improved that of molar GFRC-RBFPD.</p>
Sujets)
Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) Sujet Principal: Prothèse dentaire partielle fixe à liaison résine / Conception de prothèse dentaire / Analyse des éléments finis / Analyse du stress dentaire / Verre / Méthodes / Molaire Limites du sujet: Humains langue: Chinois Texte intégral: Chinese Journal of Stomatology Année: 2007 Type: Article

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Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) Sujet Principal: Prothèse dentaire partielle fixe à liaison résine / Conception de prothèse dentaire / Analyse des éléments finis / Analyse du stress dentaire / Verre / Méthodes / Molaire Limites du sujet: Humains langue: Chinois Texte intégral: Chinese Journal of Stomatology Année: 2007 Type: Article